(n.) A composite plant of the genus Lactuca (L. sativa), the leaves of which are used as salad. Plants of this genus yield a milky juice, from which lactucarium is obtained. The commonest wild lettuce of the United States is L. Canadensis.
Webster's Revised Unabridged Dictionary
| APA | Webster's. (2011). lettuce. Retrieved September 20, 2026, from http://smartdefine.org/lettuce/definitions/2027516 |
| Chicago | Webster's. 2011. "lettuce" http://smartdefine.org/lettuce/definitions/2027516 (accessed September 20, 2026). |
| Harvard | Webster's 2011, lettuce, Smart Define, viewed 20 September, 2026, <http://smartdefine.org/lettuce/definitions/2027516>. |
| MLA | Webster's. "lettuce" 27 May 2011. Web. 20 September 2026. <http://smartdefine.org/lettuce/definitions/2027516> |